var imgShown = 1;
var imgNum = 5;


function PicChange(){ 
	pic=document.getElementById("conference")
	if (imgShown==imgNum){ 
		pic.src='./images/conference1.jpg';
		imgShown=1;
		setTimeout("PicChange()", 4000 )
	}
	else{
		imgShown+=1;
		pic.src='./images/conference'+imgShown.toString()+'.jpg';
		setTimeout("PicChange()", 4000 )
	}
}
